A wrench specially used for installation of fire fighting equipment
By designing the adjustment mechanism and movable mechanism in the fire wrench, the problem of the lack of length adjustment of the existing fire wrench is solved, and the function of increasing the force arm and adapting to bolts of different sizes is realized, which improves the labor-saving and widespread use of the operation.
Patent Information
- Application Number
- CN202421533123.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing portable multi-function fire wrench lacks length adjustment function, which makes it difficult to add force arms to the fastened bolts, making it difficult to operate.
A wrench specially designed for fire-fighting equipment installation is designed, using an adjustment mechanism and a movable mechanism. Through the cooperation of the threaded rod and the rotary member, the position of the grip can be adjusted, the force arm is increased, and the bolts of different sizes are adapted to the movable mechanism.
It realizes adding force arms to the fastening bolts, reducing operating effort, and improving the practicality and scope of use of the wrench.
Smart Images

Figure CN222741322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of installation tools, in particular to a wrench specially used for installing fire-fighting equipment. Background Art
[0002] The fire wrench is a professional firefighting tool, mainly used to open and close fire hydrants and control the supply of water for effective firefighting. The fire wrench is designed and manufactured with high-strength materials to ensure that it can withstand pressure and weight in an emergency. The special design of this tool makes it easy to operate fire hydrants, whether opening or closing, quickly and effectively.
[0003] The patent website announcement number CN 210757417 U discloses a portable multifunctional fire wrench, including a handle, an arc-shaped jaw, a V-shaped jaw, a sleeve and a dial pin. The arc-shaped jaw is connected to the front end of the handle, and an adjustment toothed disc is hinged at the connection between the arc-shaped jaw and the handle. A V-shaped jaw is connected to the front end of the adjustment toothed disc, and the V-shaped jaw is butted with the end of the arc-shaped jaw. Positioning teeth that mesh with each other are provided at the corresponding position of the outer teeth of the adjustment toothed disc; a sleeve and a dial pin are provided at the rear end of the handle. The tool has the characteristics of simple and convenient operation, high efficiency, and multiple functions, and can effectively open the fire hydrant valve and the fire water interface cover or the fire hose bayonet, and the characteristics of disassembly and installation, improve the rescue efficiency of fire fighting facilities.
[0004] The applicant believes that the portable multifunctional fire wrench has the following disadvantages: the portable multifunctional fire wrench does not have the purpose of length adjustment, and when encountering a relatively tight bolt, it is unable to increase the force arm, which makes it more laborious to tighten the bolt, and thus has defects. Utility Model Content
[0005] The purpose of the utility model is to provide a wrench specially used for installing fire-fighting equipment to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a wrench specially used for installing fire-fighting equipment, comprising a wrench body, a movable mechanism is arranged on the left side of the wrench body, an adjustment mechanism is arranged on the surface of the wrench body, and a handle is arranged on the right side of the adjustment mechanism.
[0007] The adjusting mechanism comprises a threaded rod, the threaded rod is rotatably connected to the right side of the wrench body, a handle is threadedly connected to the right side surface of the threaded rod, a rotating member is fixedly connected to the surface of the threaded rod, and the rotating member is arranged between the wrench body and the handle.
[0008] Preferably, a first fixing plate is fixedly connected to the surface of the wrench body, a telescopic rod is fixedly connected to the right side of the first fixing plate, a second fixing plate is fixedly connected to the right side of the telescopic rod, and the second fixing plate is fixedly connected to the surface of the handle. The telescopic rod is arranged to ensure the stability of the handle during movement.
[0009] Preferably, the handle surface is fixedly connected to a support member, a slide groove is provided in the support member, a fixing frame is slidably connected in the slide groove, and the fixing frame is fixedly connected to the surface of the wrench body. When the handle is moving, the fixing frame slides inside the support member, thereby further ensuring the stability of the handle during movement.
[0010] Preferably, the number of the telescopic rods is two, and the two telescopic rods are symmetrically arranged.
[0011] Preferably, the movable mechanism comprises a rectangular groove, which is opened on the left side of the wrench body. A threaded shaft is rotatably connected in the rectangular groove, and the buckle can be driven to move under the rotation of the threaded shaft.
[0012] Preferably, the surface of the threaded shaft is meshed with a buckle, and the buckle is arranged on the left side of the wrench body.
[0013] Compared with the prior art, the utility model provides a wrench specially used for installing fire-fighting equipment, which has the following beneficial effects:
[0014] 1. The wrench specially used for the installation of fire-fighting equipment can drive the handle to move to the right side through the adjustment mechanism when the threaded rod rotates. At this time, the distance between the wrench body and the handle can be increased. By increasing the force arm, the purpose of more labor saving can be achieved, thereby improving the practicality of the wrench body.
[0015] 2. The wrench specially used for installing fire-fighting equipment can drive the buckle to move by the rotation of the threaded shaft through the provided movable mechanism, so as to adapt to bolts of different sizes and expand the use range of the wrench body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2This is a schematic diagram of the adjustment mechanism of the utility model;
[0019] Figure 3 This is a cross-sectional schematic diagram of the adjustment mechanism of the utility model;
[0020] Figure 4 This is a schematic diagram of the activity mechanism of the utility model;
[0021] Figure 5 It is a partial structural diagram of the active mechanism of the utility model.
[0022] In the figure: 1. wrench body; 2. adjustment mechanism; 21. first fixed plate; 22. fixed frame; 23. rotating member; 24. threaded rod; 25. second fixed plate; 26. telescopic rod; 27. supporting member; 3. movable mechanism; 31. buckle; 32. threaded shaft; 33. rectangular groove; 4. handle. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides a technical solution:
[0025] Embodiment 1:
[0026] Combination Figure 1 to Figure 2 -3, a wrench specially used for installing fire-fighting equipment, comprising a wrench body 1, a movable mechanism 3 is arranged on the left side of the wrench body 1, an adjustment mechanism 2 is arranged on the surface of the wrench body 1, and a handle 4 is arranged on the right side of the adjustment mechanism 2.
[0027] The adjusting mechanism 2 includes a threaded rod 24, which is rotatably connected to the right side of the wrench body 1. The right side surface of the threaded rod 24 is threadedly connected to the handle 4. The surface of the threaded rod 24 is fixedly connected to a rotating member 23, which is arranged between the wrench body 1 and the handle 4.
[0028] Furthermore, a first fixing plate 21 is fixedly connected to the surface of the wrench body 1, a telescopic rod 26 is fixedly connected to the right side of the first fixing plate 21, a second fixing plate 25 is fixedly connected to the right side of the telescopic rod 26, and the second fixing plate 25 is fixedly connected to the surface of the handle 4. By setting the telescopic rod 26, the stability of the handle 4 during movement can be ensured.
[0029] Furthermore, a support member 27 is fixedly connected to the surface of the handle 4, a slide groove is provided in the support member 27, a fixing frame 22 is slidably connected in the slide groove, and the fixing frame 22 is fixedly connected to the surface of the wrench body 1. When the handle 4 is moving, the fixing frame 22 slides inside the support member 27, further ensuring the stability of the handle 4 during movement.
[0030] Furthermore, the number of telescopic rods 26 is two, and the two telescopic rods 26 are symmetrically arranged.
[0031] Embodiment 2:
[0032] See also Figure 4-5 On the basis of the first embodiment, the movable mechanism 3 further comprises a rectangular groove 33, the rectangular groove 33 is opened on the left side of the wrench body 1, and a threaded shaft 32 is rotatably connected in the rectangular groove 33. When the threaded shaft 32 rotates, the buckle 31 can be driven to move.
[0033] Furthermore, a buckle 31 is meshed on the surface of the threaded shaft 32 , and the buckle 31 is arranged on the left side of the wrench body 1 .
[0034] In actual operation, when the device is used, the threaded shaft 32 is first rotated according to the size of the required bolt. The rotation of the threaded shaft 32 can drive the buckle 31 to move, so that it can adapt to bolts of different sizes, thereby expanding the use range of the wrench body 1.
[0035] When encountering a tightened bolt, the rotating member 23 can be rotated to drive the threaded rod 24 to rotate. During the rotation of the threaded rod 24, the handle 4 can be driven to move to the right. At this time, the distance between the wrench body 1 and the handle 4 can be increased. By increasing the force arm, the purpose of saving more effort can be achieved, thereby improving the practicality of the wrench body 1.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
Claims
1. A wrench specially used for installing fire-fighting equipment, comprising a wrench body (1), characterized in that: A movable mechanism (3) is arranged on the left side of the wrench body (1), an adjustment mechanism (2) is arranged on the surface of the wrench body (1), and a handle (4) is arranged on the right side of the adjustment mechanism (2); The adjusting mechanism (2) comprises a threaded rod (24), the threaded rod (24) is rotatably connected to the right side of the wrench body (1), the right side surface of the threaded rod (24) is threadedly connected to a handle (4), the surface of the threaded rod (24) is fixedly connected to a rotating member (23), and the rotating member (23) is arranged between the wrench body (1) and the handle (4).
2. A wrench specially used for installation of fire-fighting equipment according to claim 1, characterized in that: A first fixing plate (21) is fixedly connected to the surface of the wrench body (1); a telescopic rod (26) is fixedly connected to the right side of the first fixing plate (21); a second fixing plate (25) is fixedly connected to the right side of the telescopic rod (26); and the second fixing plate (25) is fixedly connected to the surface of the handle (4).
3. A wrench specially used for installation of fire-fighting equipment according to claim 1, characterized in that: A support member (27) is fixedly connected to the surface of the handle (4), a slide groove is provided in the support member (27), a fixing frame (22) is slidably connected in the slide groove, and the fixing frame (22) is fixedly connected to the surface of the wrench body (1).
4. A wrench specially used for installation of fire-fighting equipment according to claim 2, characterized in that: The number of the telescopic rods (26) is two, and the two telescopic rods (26) are symmetrically arranged.
5. A wrench specially used for installation of fire fighting equipment according to claim 1, characterized in that: The movable mechanism (3) comprises a rectangular groove (33) which is arranged on the left side of the wrench body (1). A threaded shaft (32) is rotatably connected in the rectangular groove (33).
6. A wrench specially used for installation of fire-fighting equipment according to claim 5, characterized in that: A buckle (31) is meshed on the surface of the threaded shaft (32), and the buckle (31) is arranged on the left side of the wrench body (1).
Citation Information
Patent Citations
Portable multifunctional fire-fighting wrench
CN210757417U